Clash of Clans: TH15 Pet Upgrade Order

Clash of Clans: TH15 Pet Upgrade Order

Getting to Town Hall 15 in Clash of Clans takes dedication and patience, but the rewards are worth it. One of the biggest perks of reaching TH15 is unlocking four new powerful pets that can aid your heroes in attacks.

These furry friends can give you a major advantage in both Clan Wars and regular attacks, as long as you upgrade them wisely.

Knowing the right upgrade order for your pets can be confusing for many players, but don’t worry – we’re here to simplify it for you.

Pet House upgrades are one of the longest upgrades of the game. To unlock all four pets, you’ll need to invest a significant amount of Elixir and time.

If you haven’t unlocked a pet with a higher upgrade priority yet, you can work your way down the list and upgrade the next pet.

By doing so, you won’t be stuck waiting for the pets to unlock. This will save you a lot of time.


Frosty is the first pet that becomes available to Town Hall 15 players in Clash of Clans. To unlock this furry companion, you’ll need to upgrade your Pet House to level 5.

Frosty’s utility in attacks cannot be overstated. Its primary attacks can significantly slow down enemy defenses, heroes, and troops, giving you a major advantage.

But that’s not all – Frosty also spawns Frostmites every few seconds. These little helpers can slow down the attack rate of their targets, making it even easier for your troops to take them down.

With these unique abilities, Frosty has a higher upgrade priority than all other pets available at TH15.

Upgrading Frosty can have a significant impact on the outcome of your attack strategies. By investing Dark Elixirs in Frosty, you can boost its abilities and make it even more effective.

With improved damage per second, hitpoints, and more Frostmites, Frosty can help you take down enemy defenses and heroes more efficiently.

LevelUpgrade Cost (Dark Elixirs)Upgrade Time
2215,0003 days
3225,0004 days
4235,0005 days
5245,0005 days, 12 hours
6255,0006 days
7265,0006 days, 12 hours
8275,0007 days
9285,0007 days, 12 hours
10295,0008 days


The Phoenix is the second most powerful pet in Clash of Clans. This loyal pet starts off as an egg when its hero is deployed in battle.

The egg remains dormant until the hero is knocked out.

Once this happens, the Phoenix hatches and revives the hero for a brief period, during which both the hero and the Phoenix become invincible.

This gives you a precious window of time to continue your attack without the fear of losing your hero. However, once the timer runs out, the hero will bite the dust again, and the Phoenix will continue to fight on its own.

With its unique ability to bring heroes back to life, the Phoenix has the second-highest upgrade priority points.

Like all other pets in Clash of Clans, the Phoenix can be upgraded up to 10 levels. However, upgrading this powerful pet will require a considerable amount of Dark Elixir.

The good news is that these upgrades can greatly improve Phoenix’s abilities, such as increasing its revive duration, damage per second, and hitpoints.

With each upgrade, the Phoenix becomes an even better companion for your hero. By investing in your Phoenix, you can significantly improve your attack strategies as a TH15 player.

Don’t hesitate to prioritize this mighty pet in your upgrade list!

LevelUpgrade Cost (Dark Elixirs)Upgrade Time
2230,0003 days
3240,0004 days
4250,0005 days
5260,0005 days, 12 hours
6270,0006 days
7280,0006 days, 12 hours
8290,0007 days
9300,0007 days, 12 hours
10310,0008 days


As a Town Hall 15, you will unlock Diggy as your second pet. This loyal companion functions like a Battle Drill, allowing it to dig underground tunnels and skip walls.

Once it reaches its target, Diggy bursts out and stuns its target for a few seconds. During this time, the target is unable to attack, giving you an important advantage in battle.

Upgrading Diggy can further improve its stun duration, damage per second, and hitpoints.

When deciding on the order of pet upgrades as a TH15, it’s highly recommended to prioritize Diggy as the third pet upgrade.

Diggy’s ability to stun its target can have a major impact on the effectiveness of your attacking strategies, especially when taking down key defenses like Inferno Towers, Eagle Artillery, Scattershots, and Monolith.

Additionally, Diggy’s stun can reset the targeting of an Inferno Tower, potentially saving your heroes from taking massive damage.

LevelUpgrade Cost (Dark Elixirs)Upgrade Time
2220,0003 days
3230,0004 days
4240,0005 days
5250,0005 days, 12 hours
6260,0006 days
7270,0006 days, 12 hours
8280,0007 days
9290,0007 days, 12 hours
10300,0008 days

Mighty Yak

The Mighty Yak receives a significant boost with five new level upgrades at Town Hall 15. This powerful pet serves as a valuable help to its owner by quickly demolishing walls in its path, making things easier for the hero.

With a substantial number of hitpoints and a nice damage-per-second output, the Mighty Yak proves to be a good companion.

Moreover, when its owning hero is knocked out, the Mighty Yak enters a rage mode, unleashing even greater damage. It is important to prioritize the upgrade of the Mighty Yak to attain superior results in your attack strategies.

LevelUpgrade Cost (Dark Elixirs)Upgrade Time
11290,0008 days
12295,0008 days
13300,0008 days
14305,0008 days
15310,0008 days


LASSI receives five new levels upon reaching Town Hall 15. This pet can become an invaluable companion to the Royal Champion, offering valuable support during battles.

With her fast movement speed, LASSI is capable of keeping up with the Royal Champion and can even lead the way as she is slightly faster.

LASSI plays a major role in damage tanking for the Royal Champion by taking the lead. Furthermore, with the additional five levels, LASSI becomes even more adept at absorbing damage.

Upgrading your LASSI to level 15 will significantly strengthen your attack strategies, empowering your heroes to overcome challenges with greater efficiency.

Prioritizing the upgrade of LASSI is highly recommended to buff your offensive potential and ensure more successful outcomes with your attacks.

LevelUpgrade Cost (Dark Elixirs)Upgrade Time
11250,0008 days
12260,0008 days
13270,0008 days
14280,0008 days
15290,0008 days

Poison Lizard

As a TH15, the third pet you can unlock is the Poison Lizard – a loyal companion with a unique skill set. This pet works similarly to a Headhunter. It uses its poisonous spit to slow down its target.

The Poison Lizard is particularly effective against enemy heroes and Clan Castle troops, as it can significantly reduce their attack rate and speed.

When an enemy hero comes within range, Poison Lizard springs into action, spitting its poisonous venom to slow down the hero’s attack rate and movement speed.

This not only gives your hero more time to deal damage to the enemy hero but also reduces the risk of your hero getting taken out by the enemy hero.

With each upgrade, Poison Lizard’s ability to decrease the attack rate and speed of its target gets better. It also receives a buff in damage per second and hitpoints with each level.

The reason Poison Lizard is at the end of the upgrade order is mainly due to its vulnerability to enemy defenses. Despite its useful ability to slow down enemy heroes and Clan Castle troops, Poison Lizard has low hitpoints and high movement speed.

This means it often rushes ahead and can get easily taken down by enemy defenses.

Therefore, upgrading Poison Lizard should be done at the end, once you have upgraded the other pets and have enough Dark Elixirs to spare.

LevelUpgrade Cost (Dark Elixirs)Upgrade Time
2225,0003 days
3235,0004 days
4245,0005 days
5255,0005 days, 12 hours
6265,0006 days
7275,0006 days, 12 hours
8285,0007 days
9295,0007 days, 12 hours
10305,0008 days
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By Harris

Harris is a dedicated Clash of Clans player who has been playing the game for years. He shares his knowledge and experience through his blog, ClashDaddy, where he writes in-depth guides on various aspects of the game. Harris is passionate about helping other players to improve in Clash of Clans. When he's not playing or writing about the game, he enjoys spending time with his family.


  1. What is the best pet combination for BK? Level 15 Yak or Level 10 Phoenix? Also for RC level 15 LASSI or level 10 Diggy? What would you suggest?

    1. When it comes to hero and pets combination, I suggest teaming up a level 15 Yak with the Barbarian King. Alongside this, using a level 10 Phoenix with the Royal Champion can be a good choice.

      Remember, things can change in Clan Wars or CWL, where the right pet combo depends on the enemy base. But when I’m farming or attacking casually, I prefer using the Yak with the Barbarian King and the Phoenix with the Royal Champion for better results.

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